diff --git a/src/mainboard/lenovo/t400/variants/r500/overridetree.cb b/src/mainboard/lenovo/t400/variants/r500/overridetree.cb
index 79fe00c07e..cb059c65fa 100644
--- a/src/mainboard/lenovo/t400/variants/r500/overridetree.cb
+++ b/src/mainboard/lenovo/t400/variants/r500/overridetree.cb
@@ -20,6 +20,7 @@ chip northbridge/intel/gm45
 			device pci 1f.0 on # LPC bridge
 				subsystemid 0x17aa 0x20f5
 				chip ec/lenovo/h8
+					device pnp ff.2 on end # dummy
 					register "config1" = "0x05"
 					register "config3" = "0x40"
 					register "event6_enable" = "0x87"